What it does
What it does
Castor oil is thick because it's mostly ricinoleic acid. That thickness coats the strand and helps smooth the cuticle, so there's less friction.
Benefits for your hair
Benefits for your hair
- Smooths the cuticle
- Reduces friction
- Adds a protective coat
- Helps reduce breakage
Where you'll find it
Where you'll find it
The Nourishing Multi-Use Oil, where it's the workhorse for coating and smoothing.
The science and fine print
The science and fine print
Castor oil is well supported for coating and reducing friction. No peer-reviewed human trial shows that it makes hair grow, so we don't say it does. Sources that claim growth often rest on a single computer-modeled prediction, not a trial.
